Home Database Mysql Tutorial 关于Oracle的任务进程提交后不执行原因

关于Oracle的任务进程提交后不执行原因

Jun 07, 2016 pm 04:33 PM

我遇到的问题是因为之前提交的任务仍然在运行,因此重新提交相同任务时不执行。Oracle设定的同时执行任务进程数有限,所以在上一

/* 以下命令在 SQL*Plus 中运行 */
--任务不执行时检查步骤
--1. 检查实例会话是否受限制
select instance_name,logins from v$instance;
--  若提示 logins=RESTRICTED 则执行
alter system disable restricted session;
--2. 确保 job_queue_processes > 0
show parameter job_queue_processes;
--3. 检查任务是否依然在运行
select * from dba_jobs_running;

我遇到的问题是因为之前提交的任务仍然在运行,因此重新提交相同任务时不执行。Oracle设定的同时执行任务进程数有限,所以在上一次提交的任务未执行完毕时,再次提交的任务只能在队列中等待,不会直接执行。

我写了个视图,,可以方便的查询当前执行的任务

--查询正在运行的任务
/* 需要在sys登录下授予用户权限
grant select on dba_jobs_running to a2admin;
grant select on v_$session to a2admin;
*/
create or replace view job_run_view
as
select a.job,a.sid,b.SERIAL#,a.failures,a.last_date,a.this_date,a.instance from dba_jobs_running a,v$session b where a.sid=b.sid order by 1;

若需要关闭任务进程,执行以下代码,相应替换掉sid和serial#

--关闭进程sid,serial#,替换为相应值
--alter system kill session 'sid,serial';

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